正体不明 十六夜 is a Weiß Schwarz card from 角川スニーカー文庫 Smi/W62-019. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 All opponent's Character gains 『【AUTO】 ENCORE [Place 1 Character from Hand into Waiting Room]』.
This card was printed in Japanese only; the English text above is an unofficial community translation.